Efficiency data is provided in the following graphs with and without 12-V bias power. The bias supplies power to control, isolators, and gate drive. The graph in Figure 3-1 was taken under the following conditions:

• V_IN,RMS = 240 V
• V_OUT = 400 V
• Coolant Temperature: 20°C

Figure 3-1 PFC Efficiency

The graph in Figure 3-2 was taken under the following conditions:

• V_IN = 400 V
• V_OUT = 350 V
• Coolant Temperature: 20°C

Figure 3-2 CLLLC Efficiency

The graph in Figure 3-3 was taken under the following conditions:

• V_IN,RMS = 240 V
• V_OUT = 350 V
• Coolant Temperature: 20 °C

Figure 3-3 System Efficiency